[Coco] First experiences with my DE1

Nick Marentes nickma2 at optusnet.com.au
Mon Feb 17 15:52:51 EST 2014


I've now got my DE1 running the CoCo3FPGA with Disk Extended Basic.

I don't know exactly how or why though.

What I decided to do is erase the Flash RAM then wrote the CoCo3 rom 
image (32K) to the flash starting at address 000000.

The DE1 didn't boot but when I set the DE1 switches (2 & 3) to select 
slot 4 of the virtual multipack, it booted into Disk Basic like a normal 
CoCo3 with a disk controller cart.

Why I don't know. I hadn't flashged the Disk Basic ROM so clearly it is 
included in the CoCo3 ROM image.

And why didn't Extended Color Basic boot when the virtual MPI switch was 
on 0?

I'm sure a multipack with no cartridge artached just boots as a 
cartridgless CoCo3?

Anyway, it's working.

Now I need to work out how to read DSK images. I copied a DSK file to 
the SDCard but I can't seem to read it. Anyone had experience with the 
DE1 reading DSK's?

It does do it doesn't it?

Nick



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